1976322940 has 24 divisors (see below), whose sum is σ = 4151396592. Its totient is φ = 790316160.

The previous prime is 1976322937. The next prime is 1976322949. The reversal of 1976322940 is 492236791.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1976322949) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 78055 + ... + 100225.

It is an arithmetic number, because the mean of its divisors is an integer number (172974858).

Almost surely, 2^1976322940 is an apocalyptic number.

1976322940 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1976322940 is an abundant number, since it is smaller than the sum of its proper divisors (2175073652).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1976322940 is a wasteful number, since it uses less digits than its factorization.

1976322940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26637 (or 26635 counting only the distinct ones).

The product of its (nonzero) digits is 163296, while the sum is 43.

The square root of 1976322940 is about 44455.8538327631. The cubic root of 1976322940 is about 1254.9294288979.

The spelling of 1976322940 in words is "one billion, nine hundred seventy-six million, three hundred twenty-two thousand, nine hundred forty".